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- W1979361981 abstract "A series of calcium-modified alumina-supported cobalt catalysts were prepared with a two-step impregnation method, and the effect of calcium on the catalytic performances of the catalysts for the partial oxidation of methane to syngas (CO and H2) was investigated at 750 °C. Also, the catalysts were characterized by XRD, TEM, TPR and (in situ) Raman. At 6 wt.% of cobalt loading, the unmodified alumina-supported cobalt catalyst showed a very low activity and a rapid deactivation, while the calcium-modified catalyst presented a good performance for this process with the CH4 conversion of ∼88%, CO selectivity of ∼94% and undetectable carbon deposition during a long-time running. Characterization results showed that the calcium modification can effectively increase the dispersion and reducibility of Co3O4, decrease the Co metal particle size, and suppress the reoxidation of cobalt as well as the phase transformation to form CoAl2O4 spinel phases under the reaction conditions. These could be related to the excellent catalytic performances of Co/Ca/Al2O3 catalysts." @default.
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- W1979361981 date "2008-02-01" @default.
- W1979361981 modified "2023-09-27" @default.
- W1979361981 title "Partial oxidation of methane to synthesis gas over Co/Ca/Al2O3 catalysts" @default.
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- W1979361981 doi "https://doi.org/10.1016/j.cattod.2007.10.051" @default.
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